Cobaltous sulfide
[化] 硫化钴
🧩 词语组成解析
a. (正)钴的, 二价钴的\\n[建] (正)钴的, 二价钴的
n. 硫化物\\n[化] 硫化物
🗣️ 情景例句
I just want to tell you
我想告诉
You're sure of passing the exam if you work hard.
只要用功，主汪定能考及格。
Last year was a bad year for the company. There was a big fall in sales.
去年公司不景气。销售额骤减。